WHO INVENTED DiSC?

The Original Research Was The Key.

The research behind DiSC began in the 1920’s, with work by prominent Harvard schooled psychologist William Moulton Marston (also credited with inventing the lie detector). In 1928 he published a book, The Emotions of Normal People, which became the foundation for DiSC.

In 1931, Dr. Marston published a second book, Integrative Psychology, which developed the concept further. 

CLICK HERE: More information on William Moulton Marston.

How It Became DiSC.

Though Dr. Marston’s work was crucial to the development of DiSC assessments, he never actually created an assessment tool. Dr. John Geier, also a prominent psychologist (and professor) created the first DiSC assessment in 1970 based on the work of Dr. Marston, and it has become a standard for all training assessment instruments.

Since the development of the DiSC Profile, it has been validated against other widely accepted assessment tools, and the research of other prominent experts (such as Carl Jung’s MBTI, and Cattell’s 16PF works). The DiSC assessment has consistently proven itself to be a valid, reliable instrument.